Prediction of the thermal conductivity of liquid N-alkanes over wide density ranges

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:6094994

Calado, J C.G.; Fareleira, J M.N.A.; Mardolcar, U V; De Castro, C A.N.

The thermal conductivity of liquids has been proved in the past to be difficult to predict with a reasonable accuracy, due to the lack of accurate experimental data and reliable prediction schemes. The proposed correlation scheme is constructed on a theoretically based treatment of the van der Waals model of a liquid, which permits the prediction of the density dependence and the thermal conductivity of liquid n-alkanes, methane to tridecane, for temperatures between 110 K and 370 K and pressures up to 0.6 MPa, i.e., for 0.3 less than or equal to T/T/sub c/ less than or equal to 0.7 and 2.4 less than or equal to rho/rho/sub c/ less than or equal to 3/7, with an accuracy of +- 1%, given a known value of the thermal conductivity of the fluid at the desired temperature. A generalization of the hard core volumes obtained, as a function of the number of carbon atoms, showed that it was possible to predict the thermal conductivity of pentane to tetradecane to within +- 2%, without the necessity of available experimental measurements.

• OSTI ID: 6094994
• Report Number(s): CONF-870323-
• Resource Relation: Conference: American Institute of Chemical Engineers spring national meeting, Houston, TX, USA, 29 Mar 1987; Other Information: Technical Paper 20C
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
DENSITY
THERMAL CONDUCTIVITY
ACCURACY
CALCULATION METHODS
LIQUIDS
MATHEMATICAL MODELS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
VAN DER WAALS FORCES
FLUIDS
HYDROCARBONS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
400201* - Chemical & Physicochemical Properties